Nut-lock.



J. E. S HlNN.

NUT LOCK.

APPLICATION FILED MAY 25, I915.

1,15% M, Patented Oct. 26, 1915.

1 mg. l

WITNESSES:

WM ATTORNEY.

JAMES E. SHINN, OF CONWAY SPRINGS, KANSAS.

NUT-LOCK.

Specification of Letters Patent.

Patented (Jet. 26, 1915.

Application filed May 25, 1915. Serial No. 30,305.

To all whom it may concern:

Be it known that I, JAMES E. SHINN, a resident of Conway Springs, in the county of Sumner and State of Kansas, have in- 15 vented certain new and useful Improvements in N ut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to nut-locks and is designed to be of general utility and easily to apply to bolts now in general use.

Reference will be had to the accompanying drawings, in which- Figure l is a perspective view vention; Fig. 2, a plan view.

Similar numerals refer to similar parts throughout the several views.

(1) denotes a rectangular metallic cap made of a size to suit the nut and is provided with a central aperture to receive the end of the bolt (9). Said bolt is provided with a suitable number of V-shaped longitudinal grooves (7). Said cap is provided with a pair of lugs (4) which are cutout of the cap and turned up perpendicular to the plane thereof and each lug is provided with a hole for the reception of the locking device (5) which is preferably spring wire passed through said holes and bent as shown so that the end (8) will engage one of the grooves (7) and the other end of said wire is sprung over and hooked under a lug (6) of my in- Copies which is cut and turned up out of the cap, as is the lugs i). The member (5) is so bent that when the one end is hooked under the said lug, the other end (8) is forced and held in the groove (7), which positively prevents the nut from unscrewing off the bolt;

l Vhen it is desired to tighten up the nut, it can be given a right-hand turn and the end (8) will engage the adjacent groove and when it is Wanted to unscrew the nut, the end of the wire is lifted from under the lug (6.) and turned up which lifts the end (8) out of the groove (7 and as the cap (1) sets down over the nut, it will be seen my locking device positively prevents the nut from turning.

What I claim is In a nut-lock, a cap to fit down over the nut, said cap having a central aperture to receive the end of the bolt, lugs perpendicular to the plane of said cap and having holes therein and a locking device provided in said lugs, one end of which engages the longitudinal groove in said bolt and means to engage the other end of said locking member whereby the first mentioned end is forced and held in said groove.

In testimony whereof, I have signed this specincation in the presence of two subscribing witnesses.

JAMES E. SHINN. Witnesses:

BRUCE GRIFFITH, FRED W. BUSHNELL.

of this patent may be obtained for five cents each, by addressing the Commissioner of Ia'cents,

Washington, D. 0'." 

